Samsung ML-3561N Series, Service Manual

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Troubleshooting
Service Manual
7-7
Samsung Electronics
7.1.13 Stains on Back of Page
• Description The back of the page is stained at 55 or 126 mm intervals.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
55 or 126 mm
Check and Cause Solution
1. 55mm : Transfer roller is contaminated.
2. 126mm : Pressure roller is contaminated.
1. Perform the OPC Cleaning Mode Print 2 or
3 times. Run Self-Test to remove the conta-
mination of the transfer roller.
2. Replace the transfer roller if contaminated
severely.
3. Disassemble the fuser and clean the
H/R(Heat Roller) and P/R(Pressure roller).
And check the area between H/R and
Thermistor. If contaminated, clean the area
not to be deformed.
7.1.14 Blank Page Print out (1)
• Description Blank page is printed.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Check and Cause Solution
Bad ground contacts in OPC and/or print
cartridge. 1. Check if the Ground-OPC is defective(set
inside left side).
2. Remove contamination of the terminals of
the print cartridge and the unit.
7.1.15 Blank Page Print out (2)
• Description
1. Blank page is printed.
2. One or several blank pages are printed.
3. When the printer turns on, several blank pages print.
Check and Cause Solution
1. Bad ground contacts in OPC and/or print
cartridge.
2. Abnormal solenoid.
1. Remove contamination of the terminals of
the print cartridge.
2. Perform the engine self test using EDC Mode to
check if the Solenoid is normal.
3. If not solved by the above directions 1-2,
Replace the engine board.
4. Turn the power off, delete the data of PC
and try printing again.